Heating device



June 21 2 1927. 1,633,065

JQL. BREESE, JR

HEATING DEVICE Filed Dec 17, 1923 s Sheets-Shet 1 55 l 55 "FL: 5 l A I II 2/ 1 f/vvE/wve James Brave Jr.

. fives/var June 21, 1927.

' J. L. BREESE, JR

HEATING DEVICE s Sheets-Sheet 2 Fires/-15) June 21, 1927. 1,633,065

I J. L. BREESVE, JR

HEATING DEVI CE Filed Dec. 17, 1923 5 Sheets-Sheet 5 [WE/v 70/? James Freeae Jr.

Patented June 21, 1927. v

UNITED STATES PATENT OFFICE.

31m L. JR, CHICAGO, ILLINOIS, ASSIGNOR TO OIL DEVICES CORPORA- T1011, 01' CHICAGO, ILLINOIS, A GOBPOBA'IION'OF ILLINOIS.'

HEATING DEVICE.

Application Med December 17, ms. Serial :0. 881,671.

/The invention relates to heaters and more particularly to the kind adapted to maintain /the temperature of a room within certain J desired 6 One Object of the invention is to provide 10. ployed as a radiator. Another object is the provision of means for returning to the fuel supply unvaporized liquid fuel. Other objects will appear from time to time in the course of the specification and claims.

15 The invention is illustrated more or less diagrammatically .in the accompanying drawings wherein:

Figure 1 is an elevational view of the heating device constructed in accordance with my invention;

Figure 2 1s a top'plan view of the radiator;

Figure 3 is a horizontal section on the line 33' of Figures land 4; and

Figure 4 is a section on the line 4-4 of Fig iilre 3 e heating device comprises a burner generally designated by 10, a radiator 11 with which the burner communicates and a 80 reservoir 12 supplying fuel to the burner.

The burner includes a hollow casting 13 providing a horizontal passage 14 which communicates at the right end, as viewed in Figure 4, with a vertical passage 15 defined 33 by a tubular portion 16 integral with the casting 13. The latter, at its left end, terminates in a circular head 17 equipped with an annular chamber 18 of circular cross section, and an upright flange 19 of the head 40 is provided with interior threads and surrounds the lower threaded end'of a vertical column 20 of the radiator 11. The radiator includes another vertical column 21 and both columns are inter-connected by a plu- 45 'rality of horizontal pi s22. The annular chambzr 18 communicates with the interior of the column 20 by a circular series of a 23. The tubular portion 16'is reduced at the upper end and 5 threadedl en gedby acover24. Agasket 25 is 'iu t eig sed between'a shoulder of the cover and e uppler edge of the tubular 1 rtion to 'rovide a ermetic closure. The casting 18 1s with ,a vertical bore 26 the valve 38, a jet of airis by 45 and which includes the casting 46 to receive a screw stud 27 provided at the upper end with a gear 28 seated in a circular recess 29of the casting. I

A nozzle 30 is mounted centrally upon said gear 28 and thestem ofthe nozzle extends thru a central bore 31 provided in the gear stud. The lower part. of the bore 26 rece-ives in threaded engagementa pipe 32 which leads to a reservoir, as will be here inafter further referred to.

Attention is called to the fact that the 33 placed at equal distances from one another and extending to the lower side of another and extending to the lower side of the gear 28. A pinion 34 which is journaled' in the recess 29 meshes with theteeth of the gear 28 so that upon rotation of the pinion and consequent rotation: of the gear 28 the stud 27 ma be raised tea-vary theposition of the fue jet for purposes of ad; justment.

The end wall 35 of the casting 13 .has a vertical bore 36 into which extends .a pipe 37 rovided with a valve 38. The pipe 37 leads to a reservoir for compressed air (not shown) and the amount of air admitted to the bore 36 can be regulated by the valve 38. The wall 35 carries ahoriz'ontal nozzle 39 of known construction having a longitudinal bore 40 openin at the inner end into a port 41 thru which the compressed air enters from the bore 36. The bore 36' is enlarged at the upper end as at 42 and is closed up by a screw stud 43. Upon ad mission of the compressed air byl opening disc arged in horizontal direction past the upper end of the nozzle 30 whereby the liquid fuel is sprayed towards the left end of the passage 14. This atomized fuel and the cmpressed air may be ignited and the flame produced thereby will extend into the interior of the column 20 of the radiator 11. From the fitting of the valve 38 a branch ipe 44 leads to an inspirating device generally designated equipped with a Venturi tube 47 leading to the annular. chamber 18 and having communication therewith by an opening 48.

The casting 46 has a plurality of lateral openings 49; a nozzle 50 is carried by the casting 46 and is connected at its outer end with the pipe 44 while the innerend discharges into the tube 47.

The annular chamber 18 at a-point diametricall opposite to the aperture 48 opens into a tub tube 51 is connected with a tubular extension 53 of the casting 13 and ermits air to be discharged in the vicinity o the jet 30.

. top'a union 59 secures an exhaust pipe 60 pports an inverted tank is maintained at the level 63.

to the upper end of the column to rmit the escape of exhaust gases, as will ereinafter further a pear.

previous y referred to, theburner is- .supplied with fuel thru a pipe 32 and the fi latter leads to a constant level well 61 which 62 so that fuel The operation of the heating plant is as follows:

When the valve 39 is opened, compressed air is discharged from the nozzle and .the stream of air passing by thenozzle 30 will carry along fuel from the nozzle 30 and atomize it, and this mixture of compressed air and atomized fuel is manually ignited throu h the passage upon removal of ca 24 an the flame will extend thru the pas sage 14 into the lower part of the column 20. At the, same time,-. compressed air will be dischar d through the nozzle and this compresse air will ca along induced or msplrated air thru the ateral openings 49 ofthe inspirating 'devioe.45 as indicated by arrows in ,Fi re 3. The air from the inspirating device will flow thru the tube 47 Into the annular chamber 18. There a portion of the inspirated or induced air will escape thru the openings 23 into the lower part of column 20 to support-combustion therein. Another portion of the air in the. annular chamber 18 will escape thru the a erture .52 and-flow thru the pi 51 towa the nozzle 30 to support com ustion at the burner.

Attention is called to the fact that in case the liquid fuel carried along by the of compremed air esca ing from the bore 40 will reach the curve bottom wall 64, in case by accident the 'flame is extinshed -so that no combustion takes place, on the fuel will flow back along the bottom of passage 14 and will drip into the recess 29; and then thru the ves 33 back into the pipe 32 to again be rawn up by the of compressed air emanating from the nozzle 39.

In. order-to prevent carbon from being.

e 51 thru an aperture 52 and ,the

' may be made in the size, sha

carried along by the fuel drained back into the reservoir, a screen is provided in the pipe 32 through which the backflowing fuel is filleted.

- Attention is called to the fact that the burner is completely encased so that out- It is also noteworthy that the provision of a the Venturi tube 47 entails a great velocity of the inspirated air at the narrow portion of the tube, so that if the flame should flash back into the tube it could not cause back owing to the greater velocity of the inspirated. air. The compressed air may be obtained from any suitab e source of supply or, if referred, a small compressor may -*be provi ed to secure the w amount of compressed air.

The invention is applicable to the heating of places where it is not dedred to maintain centralized heating. It is noteworthy that the rwervoir, the burner and the Radiator constituting the heating device are all arranged compactly in the room to be heated, so that piping and other accessories necessary in the installation of heating plants are side air is not relied upon to 'enter'into condispensed with. A ready application of the invention is its use in automo ile service stations where, of course, comp-air is alwa s available. y

the drawing, a preferred embodiment of the invention is illustrated merely by way of lanation and not by way of limitation and 1t will be realized number and dispositionof parts without epart .from the spirit of m invention. I there ore do not wish to be to the particular construction of burner or radiator and wish my that many changes 1 description and drawingsto be taken as in a broad sense illustrative and diagrammatic. I, therefore, do not limit myself to the par ticular features shown, but include all chan variations and alterations constituting epartures within the sco of the inventioIn defined in the appen ed claims.

c aim 1. In a heat device, a fuel mixin chamher, a baflle wal forming part thereo a liquid fuel nozzle pro'ecting into said .mixin chamber and a fue supply (pipe associate therewith, atomizing means a apted to spray the fuel delivered I y said nozzle into said mixing chamber, the normal level of said fuel bein substantially belowthe tip of the fuel noz e, and means for returning the unvaporized liquid fuel directly to said supply pipe,

comprising longitudinal draining grooves along the exterior of said fuel nozzle.

2. Ina heating device, a fuel mixing chamber, a bafile all forming part thereof, a liq uid fuel nozzle projecting into said mixing chamber and a fuel supply pipe associated therewith, a compressed air nozzle adapted to direct 'a jet of compressed airacross the tip of said fuel nozzle, said fuel'nozzle having longitudinal drainage grooves adapted to permit the drainage direct to said fuel pipe of liquid fuel accumulating in said mixing chamber, and means -foraxially adjusting the fuel nozzle.

In witness whereof I aflix my signature.

JAMES L. BREESE, JR. 

